So where does claiming incest and polyamory are homosexuality's best analogs get Mr. Gagnon? It gets him a plum role with CNN's religion blog, natch. A role where he yet again compares homosexual sexual orientation to brother-sister sex/the desire to have multiple partners:

Because while telling most minority populations that they're intrinsically lacking in worth would rightly be called disgusting or cruel or a non-starter, for way too much of the mainstream media, telling gays that they're innately broken is still called "balance."